By having your default be assuming user consent to surveillance, you have produced spyware that reports a user’s track log history to Google via IP geolocation and a persistent unique machine identifier included with the request to Google Analytics every time the user installs a package using brew.
I assume most Homebrew users are ignorant of this fact, because you never demanded informed consent before doing it.
You are part of a troubling and growing trend of remote developers misusing the computers of their users simply because network requests are, by default, invisible to the user. Most users will never consent to such a thing if they are aware of it occurring.
It would be quite nice if, in my new machine setup checklist, I not have to include separate steps to disable my package manager’s spying on my activities in addition to the steps I already have to take to disable the macOS’s spying on my activities.